National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Male sterility is characterized by non-functional pollen grains, while female gametes function normally. It occurs in nature sporadically, perhaps due to mutation. The phenomenon of male sterility is of great significance to produce cost effective hybrid seeds. Onion crop provides one of the rare examples of very early recognition of male sterility (Jones and Emsweller, 1936), its inheritance and use in hybrid seed production (Jones and Clarke, 1943). Since then male sterility has been reported in fairly large number of crops including vegetables. These male sterility plants were either isolated in natural populations or were artificially induced through mutagenesis (Kaul, 1988). Recently, male sterility systems generated through genetic engineering (Williams et al., 1997) and protoplast fusion (Pelletier et al., 1995) have been also developed.
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